通过热重分析法研究了苯并噁嗪-酚醛-环氧豆油(BA-NP- ESO)三元聚合体系在不同升温速率下的热分解动力学.利用Kissinger-Akahira-Sunose(KAS)法和Flynn-Wall-Ozawa(FWO)法求取了三元聚合体系热分解过程的表观活化能,当分解率在0.3～0.9范围内时,反应属于同一机理,两种方法求得的活化能分别为241.1kJ/mol和253.7kJ/mol.运用Coats-Redfern法和Achar法对非等温动力学数据进行分析,得到热分解反应的机理函数,其热分解反应为四级反应,符合随机成核和随后生长机理,两种方法求得的表观活化能分别为250.21kJ/mol和266.96kJ/mol,与KAS和FWO法的结果较为一致.
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